condition	mean	min	max
4 h after light	5.4969149999999996	5.26749	5.72634
8 h after light	9.45891	9.04659	9.87123
12 h after light	9.409130000000001	8.93243	9.88583
4 h after dark	9.901005	8.91831	10.8837
8 h after dark	6.226305	6.17624	6.27637
12 h after dark	5.733665	5.37698	6.09035